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Thank you for your advice. I'm adjusting... ... O1CN01iXlhBh2C5mqkwZayV_!!1518423.jpg O1CN0131cjKu2C5mqslFul9_!!1518423.jpg O1CN0100cAgN2C5mqwFtyO2_!!1518423.jpg

I am waiting for your good news, thank you again.

OK, I'm checking, thank you.

Dear teachers, I asked about components: I have a German radio. A diode is broken. The words on the diode are only "812". I found that the line icon marked BAP 812, Ask all teachers, what is the name of this diode and what is it? What type of diode can be used instead? Thank you for your help! O1CN01tRPILB2C5mqwcFdGb_!!1518423.jpg O1CN01FBCEca2C5mqxVRL0O_!!1518423.jpg

Hello, Thank you very much. I'm a 9141 driver and amplifier board, and the 9241 is also OK. I'll change it when I come back. I'll see what you have.

Hello kugel balu， Great, thank you very much for your advice. 1/I need 2 sets of amplifier boards 14 #+2 sets of driver boards 13 #, 2/I also need a complete set of channel selection switches, including the knobs. My one has failed and broken, 3/saba 9241 Three knobs (see figure). I didn't find a place to send pictures in the private letter, so I had to send pictures here. Please see the private letter for others. O1CN011vl8nH2C5mqidkQqT_!!1518423.jpg O1CN01yLIsiP2C5mqd3Bqhf_!!1518423.jpg

Zitat von kugel-balu: „Well, you first have to refurbish the power amp circuits, and then the drivers. You can follow the systematic advice from the 9241, as the circuit is the same, only the total voltage is lower in the 9141. Since these circuits are a bit critical, I would advise to check all parts, and if in doubt, replace them. If it helps you, I could also send a full set (two drivers, two power amp boards) that are fully done, if you send the faulty ones to me. If you are interested, send…

9141 trouble help: A faulty saba 9141 machine was found in the warehouse. It was bought from Germany several years ago and has been stored in the warehouse. Fault: Four chips BD245B/BD246B of 14 # amplifier board were burnt, and T417/T418 triode was burnt; Inspection findings: The power supply of board 13 is abnormal: L5 is normally 0.65v, actual measurement: 9v L6 is normally 1.3v, actual measurement: 32v L7 is normally 0.7v, actual measurement: - 32v What is the cause of abnormal voltage? Wher…

Hallo, Ich liebe diesen SABA 9120. Ich möchte kaufen, sagen Sie mir den Preis + Versand. Meine E-Mail-Adresse: wyx12007cba1958@qq.com.

Dear friends, After several days of careful research, the problem of the saba 9140 was finally solved, I have explained the fault in the previous posts, and now introduce the maintenance process: Fault phenomenon: 1/The power on is normal, and manual tuning can be performed. Only 2 of the 7 FM storage tables display normally, and the other 5 fail and do not work. 2/Fault finding: Check the triode and integrated chip on three boards 17-18-19. After replacing the triode T1086/BC239A, the fault sti…

I replaced the T1086/BC238A and the fault still exists. I am using BC238..

Hello, teacher oldiefan, I'm here again, again with a question. I just bought a SABA 9140, and it can sound normally when turned on. Fault: 1. The memory (19) defaults to U1 after booting. I think the default should be U (manual) when booting. Is this a fault? 2. U/U1/U3/U5/U6 are in normal use, but U2/U4/U7 are not normal. Pressing down will not work. 3. I tried to replace two ICs and the fault still exists, (IS1086 and IS1081), indicating that this is not the cause of the fault. Ask the teache…

Hello, According to your instructions, I checked and found that the other end of the black wire connected to (E) is broken. After I soldered it, the LED display is normal, and the voltage of IC101 is also normal. The 8th pin is 20v, the 1-3 pins are all 10v, and the 4th pin is 0. You were very accurate and the issue was resolved. Thanks and best wishes! O1CN01753wey2C5mq2NFlvi_!!1518423.jpg O1CN017jqrm82C5mqBe3lOM_!!1518423.jpg O1CN01gefGxH2C5mq5voBxS_!!1518423.jpg New question: 3. Press the pla…

Hello, According to your instructions, I disconnected the R303 and R403. After the power is turned on, the LED does not display. Measure VR301, VR401 voltage, both pins are 20v Measure the voltage of 8 pins of IC101 is 20v. O1CN01GTl4bu2C5mq7UJpDf_!!1518423.jpg O1CN01KFYE9I2C5mq5YKaek_!!1518423.jpg

Hello, These days, due to network problems, I can't access the Internet all the time. Now it's better. All C1344 and C458 have been replaced and changed to BC550C. The current fault is: after pressing the power switch, the play button is not pressed, and the two LED displays are all lit up, full of grids. I have not found the cause of the failure, please ask the master, where should this failure be checked? Where to start. Looking forward to your reply, thank you. O1CN015JCILC2C5mq2o98ZB_!!15184…

Hello, After 10 days of hard work, I have replaced all 2SC1344s with BC550Cs, and now the playback is normal, the sound is very good, the playback of both channels is very good, and the playback is normal. There is also a fault that has not been solved: after pressing the record button, one channel has sound, and the LED is also displayed on one channel, and the other has no display. After recording and replaying, one channel is normal, and the other channel is faulty. Looking for a solution, th…

Hello, according to the suggestions of several friends, I replaced X104, X105, X204, X205 with BC550C. Now playback is normal, 2 channel sound is good. Question: 1. But now the recording is not normal, one channel has sound, the other channel has no signal, please give pointers. Question: 2. I am going to replace C1344 with BC550C, please tell me how the pins correspond, and how E, C, B correspond. thanks.

Hello, teacher, Got a problem again today. I just received a saba CD360 deck. The playback sound is good, but there is a problem with the recording: the recording sound is small, the signal is small, and there is no sound in one channel. Where should I check and start, please give me some advice, thank you. O1CN01x2oDdR2C5mp15jE5t_!!1518423.jpg

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Hello, Why am I asking about this component, because one of my Grundig RTV650 is faulty, the four fuses on the right side of the wiring diagram are afraid to install, and the sound is crackling. After removing the four insurances, I can still receive normal radio sound, so I suspect that there is something wrong with the Zener diode NT9478.